军用飞机DSI数据采集系统的设计

由于军用飞机航空电子动态仿真与综合(DSI)系统所使用的固定采集周期的数据采集方法限定了采集速度,同时还影响到数据实时采集性能,针对该问题本文提出军用飞机DSI数据采集系统的设计方案.该方案的硬件结构基于MAX1308型AD转换器、DIO-144型采集卡,并设计了接口关系.系统的软件采用事件确认收发应答机制,并能确保在...

Design of Data Acquisition System for DSI System of Military Aircraft

Data acquisition speed is limited just because acquisition frequency for military aircraft DSI system is set on a point, and the invariable frequency is not good for live data acquisition. Therefore a data acquisition system design method for DSI system of military aircraft is provided. The system＇s core is MAX1308, DIO-144, and the interface is designed. The system software is based on the rule which is used to manage the response on command＇s sending and receiving, and it can finish the whole acquisition process in the prescribed time. The system software includes three data protocols which is called by acquisition module of discrete source, and it carries out data acquisition and processing by means of initialization module, data acquisition module, data processing module and data storage module. The data acquisition system has the advantage of good expansibility, and is the key part of the DSI system of military aircraft.